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A curva de Phillips e a experiência brasileira

Authors: Adolfo Sachsida; Marcio Ribeiro; Claudio Hamilton dos Santos;

A curva de Phillips e a experiência brasileira

Abstract

Este estudo estima uma curva de Phillips com mudança de regime para a economia brasileira no período 1995-2008. De maneira geral, são três os principais resultados encontrados: i) ao contrário do que ocorreu nos resultados anteriores, ao adotarem-se especificações não lineares para a curva de Phillips, o coeficiente da expectativa de inflação torna-se superior ao coeficiente da inflação passada. Isto sugere que artigos que estimam a curva de Phillips por modelos lineares podem estar subestimando o papel das expectativas na dinâmica inflacionária; ii) os testes sugerem fortemente a rejeição da hipótese de linearidade nos parâmetros da curva de Phillips, isto é, a estimação da curva de Phillips por métodos lineares seria viesada e ineficiente; e iii) os resultados econométricos mostram pouca robustez, e alta sensibilidade, dos parâmetros a diferenças nas especificações de não linearidade ou mudanças no conjunto de proxies adotadas. Isto parece indicar a inadequação da curva de Phillips para explicar a dinâmica inflacionária na economia brasileira.

Keywords

ddc:330, Brasilien, E24, Phillips-Kurve, E31, C33

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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